Fix a syntax error in the ActiveDirectory backend.
Fix a syntax error in the ActiveDirectory backend.

Reviewed at http://reviews.review-board.org/r/848/




bkochendorfer/reviewboard,KnowNo/reviewboard,chipx86/reviewboard,custode/reviewboard,1tush/reviewboard,atagar/ReviewBoard,asutherland/opc-reviewboard,chazy/reviewboard,chazy/reviewboard,beol/reviewboard,1tush/reviewboard,atagar/ReviewBoard,1tush/reviewboard,atagar/ReviewBoard,Khan/reviewboard,brennie/reviewboard,KnowNo/reviewboard,brennie/reviewboard,reviewboard/reviewboard,Khan/reviewboard,1tush/reviewboard,chipx86/reviewboard,beol/reviewboard,sgallagher/reviewboard,chazy/reviewboard,brennie/reviewboard,Khan/reviewboard,beol/reviewboard,chipx86/reviewboard,Khan/reviewboard,custode/reviewboard,asutherland/opc-reviewboard,custode/reviewboard,asutherland/opc-reviewboard,chazy/reviewboard,chazy/reviewboard,davidt/reviewboard,bkochendorfer/reviewboard,atagar/ReviewBoard,chazy/reviewboard,1tush/reviewboard,beol/reviewboard,bkochendorfer/reviewboard,Khan/reviewboard,1tush/reviewboard,1tush/reviewboard,reviewboard/reviewboard,Khan/reviewboard,Khan/reviewboard,KnowNo/reviewboard,atagar/ReviewBoard,1tush/reviewboard,davidt/reviewboard,bkochendorfer/reviewboard,sgallagher/reviewboard,brennie/reviewboard,chipx86/reviewboard,atagar/ReviewBoard,davidt/reviewboard,Khan/reviewboard,sgallagher/reviewboard,chazy/reviewboard,custode/reviewboard,chazy/reviewboard,KnowNo/reviewboard,1tush/reviewboard,Khan/reviewboard,asutherland/opc-reviewboard,atagar/ReviewBoard,atagar/ReviewBoard,atagar/ReviewBoard,reviewboard/reviewboard,chazy/reviewboard,reviewboard/reviewboard,davidt/reviewboard,sgallagher/reviewboard